806.34(1)
(1) If an amount contracted to be paid in a foreign money is measured by a specified amount of a different money, the amount to be paid is determined on the conversion date.

806.34(2)
(2) If an amount contracted to be paid in a foreign money is to be measured by a different money at the rate of exchange prevailing on a date before default, that rate of exchange applies only for payments made a reasonable time after default, not to exceed 30 days. Thereafter, the bank-offered spot rate of exchange on the conversion date applies.

806.34(3)
(3) A monetary claim is neither usurious nor unconscionable because the agreement on which it is based provides that the amount of the debtor's obligation to be paid in the debtor's money must, when received by the creditor, equal a specified amount of the foreign money of the country of the creditor. If, because of unexcused delay in payment of a judgment or award, the amount received by the creditor does not equal the amount of the foreign money specified in the agreement, the court or arbitrator shall amend the judgment or award to provide the creditor with the amount of the foreign money specified in the agreement.

806.36806.36
Judgments and awards on foreign-money claims; times of money conversion; form of judgment.

806.36(1)(1) Except as provided in sub. (3), a judgment or arbitration award on a foreign-money claim must be stated in an amount of the money of the claim.

806.36(2)
(2) The judgment or award on a foreign-money claim is payable in that foreign money or, at the option of the debtor, in the amount of U.S. dollars that will purchase that foreign money on the conversion date at a bank-offered spot rate.

806.36(4)
(4) Each payment in U.S. dollars must be accepted and credited on the judgment or award in the amount of the foreign money that could be purchased by U.S. dollars at a bank-offered spot rate of exchange at or near the close of business on the conversion date of that payment.

806.36(5)
(5) Judgments or awards made in an action on both a defense, setoff, recoupment or counterclaim and on the adverse party's claim must be netted by converting the money of the smaller into the money of the larger and subtracting the smaller from the larger, and must specify the rate of exchange used.

806.36(6)
(6) A judgment substantially in the following form complies with sub. (1):

IT IS ADJUDGED AND ORDERED, that defendant .... (insert name) pay to plaintiff .... (insert name) the sum of .... (insert amount in the foreign money) plus interest on that sum at the rate of ....% (insert rate — see Section 806.38 of the Wisconsin Statutes) per year or, at the option of the judgment debtor, the number of U.S. dollars that will purchase the .... (insert name of foreign money) with interest due, at a bank-offered spot rate at or near the close of business on the banking day before the day of payment, together with assessed costs of $.... (insert amount) U.S. dollars.

806.36(7)
(7) If a contract claim is of the type covered by s. 806.34 (1) or (2), the judgment or award for the amount of the money stated to measure the obligation to be paid shall be entered in the money specified for payment or, at the option of the debtor, in the number of U.S. dollars that will purchase the computed amount of the money of payment on the conversion date at a bank-offered spot rate.

806.36(8)
(8) A judgment shall be filed with the clerk of circuit court and entered in the judgment and lien docket in foreign money in the same manner and shall have the same effect as other judgments.

806.37806.37
Conversions of foreign money in a distribution proceeding. The rate of exchange prevailing at or near the closing of business on the day the distribution proceeding is initiated shall govern all exchanges of foreign money in the proceeding. A foreign-money claimant in a distribution proceeding must assert its claim in the named foreign money and show the amount of U.S. dollars resulting from a conversion as of the date the proceeding was initiated.

806.38(1)
(1) With respect to a foreign-money claim, recovery of prejudgment interest and the rate of interest to be applied in the action or distribution proceeding are matters of the substantive law governing the right to recovery under the conflict of laws rules of this state.

806.38(2)
(2) Notwithstanding sub. (1), an increase or decrease in the amount of prejudgment interest otherwise payable may be made in a foreign-money judgment to the extent required by s. 802.05, 805.03 or 807.01.

806.38(3)
(3) A judgment on a foreign-money claim bears interest at the same rate applicable to other judgments of this state.

806.39(1)
(1) Subject to subs. (2) and (3), if an action is brought to enforce a judgment of another jurisdiction expressed in a foreign money and the judgment is recognized in this state as enforceable, the enforcing judgment must be entered as provided in s. 806.36 whether or not the foreign judgment confers an option to pay in an equivalent amount of U.S. dollars. A satisfaction or partial payment made upon the foreign judgment must be credited against the amount of foreign money specified in the judgment, notwithstanding the entry of judgment in this state.

806.39(2)
(2) Notwithstanding sub. (1), a foreign judgment may be filed and entered in the judgment and lien docket under s. 806.24.

806.39(3)
(3) A judgment entered on a foreign-money claim only in U.S. dollars in another state must be enforced in this state in U.S. dollars only.

806.40806.40
Temporarily determining the U.S. dollar value of foreign-money claims for limited purposes.

806.40(1)
(1) For the limited purpose of facilitating the enforcement of provisional remedies in an action, the value in U.S. dollars of assets to be seized or restrained pursuant to a writ of attachment, garnishment, execution or other legal process, the amount of U.S. dollars at issue for assessing costs, or the amount of U.S. dollars involved for a surety bond or other court-required undertaking shall be ascertained as provided in subs. (2) and (3).

806.40(2)
(2) The party seeking the process, costs, bond or other undertaking must compute the U.S. dollar amount of the foreign money claimed from a bank-offered spot rate of exchange prevailing at or near the close of business on the banking day preceding the day of the filing of a request or application for the issuance of process or for the determination of costs, or the filing of an application for a bond or other court-required undertaking.

806.40(3)
(3) The party seeking the process, costs, bond or other undertaking shall file with each request or application an affidavit or certificate executed in good faith by its counsel or a bank officer, stating the market quotation used, how obtained, and setting forth the calculation. Affected court officials incur no liability, after a filing of the affidavit or certificate, for acting as if the judgment was in the amount of U.S. dollars stated in the affidavit or certificate.

806.40(4)
(4) Computations under this section are for the limited purposes of the section and do not affect computation of the U.S. dollar equivalent of the money of the judgment for payment purposes.

806.41(1)
(1) If, after an obligation is expressed or a loss is incurred in a foreign money, the country issuing or adopting that money substitutes a new money in place of that money, the obligation or the loss is treated as if expressed or incurred in the new money at the rate of conversion the issuing country establishes for the payment of like obligations or losses denominated in the former money.

806.41(2)
(2) If substitution under sub. (1) occurs after a judgment or award is entered on a foreign-money claim, the court or arbitrator shall amend the judgment or award by the rate of conversion of the former money.

806.42806.42
Supplementary general principles of law. Unless displaced by ss. 806.30 to 806.44, the principles of law and equity, including the law relative to the capacity to contract, principal and agent, estoppel, fraud, misrepresentation, duress, coercion, mistake, bankruptcy or other validating or invalidating causes supplement the provisions under ss. 806.30 to 806.44.

806.43806.43
Uniformity of application and construction.Sections 806.30 to 806.44 shall be applied and construed to effectuate the general purpose of making uniform the law with respect to the subject of ss. 806.30 to 806.44 among states enacting it.